Topic: verb (ক্রিয়া),

Best Answer Explained in Below-:

In the sentence "Don't let that (bother) you," the correct form of the verb "bother" is "bother" in its base form. This structure is influenced by the use of "let" as a causative verb. When employing "let," it is common to follow it with another verb in its base form to indicate action.

The phrase "Don't let that bother you" essentially means "Do not allow that to cause you distress." The base form "bother" acts as a noun here, referring to the act of causing worry or annoyance. Let's analyze the other options:

- **A) to bother**: This infinitive form is inappropriate as it does not fit the causative structure initiated by "let."
- **B) bothers**: This form is the present tense third-person singular, which is also incorrect in this context because it does not align with the imperative style.
- **D) bothered**: This past participle form implies a completed action, which is not applicable here as it would change the meaning.

Therefore, "bother" is the only choice that correctly completes the sentence, keeping it grammatically coherent and meaningful.